Combing-machine.



l. W. NASMITH. COMBING MACHINE. APPLICATION FILED AUG-7| 19H.

Wuhws es Mf JOI-ILTWILLTAM NASMITH, 0F STOGKPORT, ENGLAND.

COMBING-MACHINE.

Specification of Letters Patent.

Patented Sept. a, ram.

Application filed August 7, 1911; Serial No. 642,724.

To all whom it may concern:

Be it known that I, JOHN WILLIAM NA? sMrrI-I, of Stockport,England, have invented certain new and useful Improvements in Combing-Machines, of which the following is a specification. i

This invention relates to machines for combing textile fibers.

In combing machines as hitherto constructed difficulties arise in performing certain operations; the cleaning of the needle segments, the dressing of the needles, and removal of the segments must all be effected from the back, underneath the machine, where it is dark and inconvenient. This work could be done much better and quickerfrom above where it is light and convenient, and, with the view of enabling it to be done from above, according to this invention the nippers of the combing machine are made so that they can be lifted or turned over preferably, without disturbing their adjustment-in order to expose the needle segments and facilitate examination, removal, or repairs. In one construction according to this invention the nipper-arm that carries the upper jaw of the nipper is formed in two parts and provided with means whereby the two parts may be locked together.

In the accompanying drawings one embodiment of the present invention is shown applied to a combing machine of the kind described in the specification of my apolication for patent Serial No. 642,726, filed herewith.

Figure l is a sectional side elevation showing one arrangement according to this invention, the nipper being in its working position relatively to the cylinder, and

Fig. 2 is a similar view after the nipper has been released and turned over away from the combing cylinder.

In the said drawings, A is the cylinder,

B B are the upper and lower jaws respectively of the nipper, and D D are the detaching rollers. 1 indicates one of a pair of nipper arms pivoted upon a stud 2 and secured together by a frame bridge 3 the ends of which are secured to the backs of the arms 1 and are adjusted vertically by a set screw 4. The frame bridge 3 is provided with bosses 3 to receive a pivot pin 5, which carriesby means of bosses 6a nipper bridge 6, and this nipper bridge is secured to the frame bridge 3 by a screw 7.

An arm 8, which is pulled constantly in the direction of the arrow by a suitable spring, is pivotedupon the pin 5 and is formed or provided with projections 8 and 8*; the projection S eXtends laterally from the arm 8 and engages the lower edge of an arm 10 that carries the upper jaw of the nipper; the projection 8" extends vertically from the arm 8 and is adapted to be engaged by a latch 11 pivoted. at 12 on the top nipper-arm 10, this engagement of the latch 11 with the projection 8 taking place when the arm 10 rests against the projection 8 of the arm 8 thus locking the two arms 8 and 10 together so that any movement of the arm 8 in the direction contrary to that indicated by the arrow will arise the arm 10 and open the nipper, while any movement in the direction of the arrow will close the nipper through the medium of the latch 11.

When it is desired to remove a needle seg ment 13 or to dress bent needles or to remove matted fibers from the needles, the latch 11 is raised and the screw 7 removed-both simple operations that in no wise disturb the adjustment of the nipperand the nipper bridge 6 and arms 10 may then be turned over into the position shown in Fig. 2, fully exposing the needle segment for examination, removal, or repairs.

The feed roller is not shown in the drawing; it is removable in the usual way when the nipper is open; and it in no way impedes the turning over of the nipper as described above, the bearings of the feed roller being suitably secured on the nipper bridge 6.

What I claim is:

1. As an improvement in combing machines, a pivoted nipper support, a nipper pi votally mounted upon said support and capable of being turned away from the combing cylinder, and means for normally preventing such pivotal movement.

2. As an improvement in combing machines, a pivoted nipper support, a nipper pivotally mounted upon said support and capable of being turned away from the combing cylinder, means for normally preventing such pivotal movement, and means for adjusting the nipper and its pivotal mounting upon said support.

3. As an improvement in combing machines, a nipper support, nipper bridges pivotally mounted upon said support to oscillate on a common axis, nipper jaws carried by the respective nipper bridges, and means chines, a nipper support, nipper bridges pivotally mounted upon said support to oscillate on a common axis, nipper jaws car- I ried by the respective nipperbridgesmeans for temporarily locking one of said nipper bridges against movement relative to said support, anactuator, and a. movabledatch attaehed to one of said nipper brid qesand normally engaging said actuator.

5. As an improvement in combing Inachines, a nipper support, nipper bridges Copies of thispatent may beobtained ionfivezeents each, by addressing the Commissioner LIatents pivot'ally mounted upon said support to oscillate on a common axis, nipper jaws carried by the respeeti-venipper bridges, means for temporarily locking one of said nipper bridges against movement relative to said support, an actuator, and means for normally maintaining an operative connection betweenithe actuator and one of said nipper bridges.

In testimony whereof Lhaveatfixed my 25 Washington, 20.,0. 

